1. The Hull York Medical School and University of Hull, Hull, UK
2. Wolfson Palliative Care Research Centre, Hull York Medical School, University of Hull, Hull, UK
3. Joint Centre of Cancer Studies, Queen’s Centre for Oncology and Haematology, Hull and East Yorkshire Hospitals NHS Trust, Hull, UK
4. Queen’s Centre for Oncology and Haematology, Hull and East Yorkshire Hospitals NHS Trust, Hull, UK